The notorious students of Room 207 are up to their old tricks. When their sweet teacher, Miss Nelson, has to go out of town for a week, the kids are absolutely thrilled. They are ready to throw spitballs, make paper airplanes, and act up all week long. They even come up with a clever plan to dress up in a giant sweater and trick their principal into thinking Miss Nelson never left. But the students are in for a massive shock. Just when they think they have outsmarted all the adults at school, the door bursts open. Standing there in an ugly black dress is the meanest, strictest substitute teacher in the whole world. Miss Viola Swamp has returned, and she means business! This hilarious and classic school story will have you giggling as the mischievous students finally meet their match.